but cf 中文意思是什麼

but cf 解釋
十念往生
  • but : adv 1 〈書面語〉不過，只，僅僅；只能，至少，好歹。2 剛剛，才。3 〈書面語〉然而，另一方面。vt 對（...
  • cf : Cf ＝californium 【化學】鐦。
  1. The system, not only has necessary ethernet interface, audio and video output, keyboard mouse connection interface, but also has hard disk ide, cf card and infrared interfaces which improves the system expansion ability

    系統中除了設計必備的以太網路，音視頻輸出，鍵盤鼠標介面等，還提供了硬盤ide ， cf卡和紅外等介面，提高了系統的擴展能力。
  2. It shows that the increasing of microwave power can result in increasing of deposition rate, but decreasing of f / c ratios and abundance of cf and cf3 groups in cl - c : f films, and keeping that of cf2 group variation around a constant

    在560w以上的高微波功率下沉積的薄膜是主要由cf _ 2基團和c = c結構組成的- c : f薄膜。
  3. At the same time, the study shows that adding 30wt cf has little influence on friction coefficient of bismaleimide matrix wearable composite, but it can reduce the wear rating greatly

    研究同時表明， 30份碳纖維的加入，對改性雙馬樹脂基耐磨復合材料的摩擦系數影響不大，卻大大降低了材料的磨損率。
  4. Cf is a kind of non - different recommendation to all customers, so it is may appear that the company spend much cost but have little revenue. recently a new recommend technology base on lifetime value of customers have emerged, the centre of the technology is to use the weighed sum of the three variable to classify the customers and the reason of use weighed variable is that think about the relative important degree. then we can recommend products according to the association rule in the classify of same clv. the shortcoming of this recommendation is that the recommendation may have some error when the customers ’ data is not enough to form regular value

    近年來出現了一種採用基於客戶生命周期值的加權rfm （表示客戶生命周期的三個指標變量）技術的推薦方法，這一技術的核心思想就是採用這三個客戶屬性變量的加權和的方法來對客戶進行聚類，其中為變量加權是考慮到不同變量對顧客產生的不同重要程度的影響。對符合某一生命周期類型的客戶按照商品挖掘關聯技術進行商品推薦。這種推薦方法的弊端在於當客戶的交易數據不足以形成規律化的量值時，推薦可能會出現偏差。
  5. A laptop is ideal, but anything with a usb port should work, if you have a cf reader that works under linux

    最好是一臺膝上型計算機，不過如果您有一個可以在linux下工作的cf讀卡器，那麼任何帶有usb埠的計算機都可以工作。
分享友人
分享到 Line

分享到臉書